package com.qk.management.web.interceptor;

import com.qk.common.util.CurrentUserContextHolders;
import com.qk.common.util.JwtUtils;
import io.jsonwebtoken.Claims;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpStatus;
import org.springframework.stereotype.Component;
import org.springframework.web.servlet.HandlerInterceptor;

import java.util.Objects;

/**
 * @author fantuan
 * @created 2025/10/11 14:53
 * @description 登录校验拦截器
 */
@Slf4j
@Component
public class LoginCheckInterceptor implements HandlerInterceptor {
    private static final String TOKEN_HEADER_NAME = "token";

    @Override
    public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {
        String token = request.getHeader(TOKEN_HEADER_NAME);
        if(Objects.isNull(token)){
            log.info("token为空");
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }
        try {
            Claims claims = JwtUtils.parseToken(token);
            log.info("------------token验证成功--------------");
            String username = claims.get("username", String.class);
            log.info("username:{}", username);
            Integer id = claims.get("id",Integer.class);
            log.info("id:{}", id);
            CurrentUserContextHolders.set(id);
            return true;
        } catch (Exception e) {
            log.error("-----------token验证失败：{}--------------", e.getMessage());
            response.setStatus(HttpStatus.UNAUTHORIZED.value());
            return false;
        }

    }

    @Override
    public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex) throws Exception {
        CurrentUserContextHolders.remove();
    }
}
